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Measurement of extraocular horizontal muscle insertion distance via anterior segment optical coherence tomography of healthy children and comparison with healthy adults

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Abstract

Purpose

The aim of the study was to determine the corneal limbus–extraocular muscle insertion distance (LID), via anterior segment optical coherence tomography, in healthy children and healthy adults and to compare the results of the measurements of the two groups.

Methods

Muscle limbus distances were measured using AS-OCT in 60 healthy cases in two groups. Children aged 8–13 years were evaluated as group 1, and healthy adults aged 25–30 years were evaluated as group 2. Measurements of 120 horizontal muscles were taken by one doctor (OBO). The values were compared according to age and gender groups, and correlation between LID measurements and spherical equivalent. Statistical evaluation was performed using SPSS 16® for Windows with the Student’s t test and Pearson correlation coefficient test.

Results

LID measurements for MR and for lateral rectus (LR) were 5.74 ± 0.75 and 6.74 ± 1.11 mm, in the pediatric age-group, and 5.73 ± 0.75 and 6.84 ± 1.15 mm, in the adult age-group, respectively. There was no statistically significant difference between the two groups in terms of MR distances. There was a slight increase in the adult values, for the LR distance. There was no significant difference in terms of gender. Correlation was found 0.62 for MR and 0.46 for LR between LID measurements and spherical equivalent in the pediatric age-group.

Conclusions

In healthy individuals, different imaging modalities can be used to measure LID, but AS-OCT can be used in pediatric age-groups as a preferred imaging method because it is easy and noninvasive.

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Authors’ contributions

OBO, AI, and BG were involved in conception and design. IY, EDA, and SC collected the data. OBO, AI, SYO, and MT performed the analysis and interpretation.

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Correspondence to Osman Bulut Ocak.

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The authors declare that they have no conflict of interest.

Ethical standard

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Informed consent was obtained from all individual participants included in the study.

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Ocak, O.B., İnal, A., Yilmaz, İ. et al. Measurement of extraocular horizontal muscle insertion distance via anterior segment optical coherence tomography of healthy children and comparison with healthy adults. Int Ophthalmol 39, 1037–1042 (2019). https://doi.org/10.1007/s10792-018-0903-5

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  • DOI: https://doi.org/10.1007/s10792-018-0903-5

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